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1/2(6x+4)+2/3(-3x+9)=21
We move all terms to the left:
1/2(6x+4)+2/3(-3x+9)-(21)=0
Domain of the equation: 2(6x+4)!=0
x∈R
Domain of the equation: 3(-3x+9)!=0We calculate fractions
x∈R
(3x(-)/(2(6x+4)*3(-3x+9))+(4x6/(2(6x+4)*3(-3x+9))-21=0
We can not solve this equation
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